Ответы на вопрос:
16 : (9 - x) + 8 = 10 | ×16 9 - x + 128 = 160x = 9 + 128 - 160x = -23 (4 × x - 130) : 7 = 50 | ×7 4x - 130 = 350 4x = 350 + 130 4x = 480 x = 120
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